关于自己对okhttp的理解-----get请求同步用法

来源：互联网发布：linux 打印机驱动编辑：程序博客网时间：2024/05/20 06:40

通过在网上查看资料，我现在把自己理解的okhttp作为笔记记录下来，方便以后查看，如果哪里有些的不对，还请大家多多指教。

首先介绍okhttp的同步get请求用法

第一步导入jar包：

compile 'com.squareup.okhttp3:okhttp:3.6.0'

第二步获取reques请求t对象：

Request request=new Request.Builder().url(url).build();

第三步获取response响应对象

Response response=okhttpclient.newCall(request).execute();

第四部获取responseBody对象

response.body();

第五步获取请求网络返回的数据有三种

字符串类型

responseBody.string();

字节数组类型

responseBody.bytes();

输入流

responseBody.byteStream();

整体代码是这样的

package com.example.administrator.testokhttp;
import android.util.Log;
import java.io.IOException;import java.io.InputStream;
import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.Response;import okhttp3.ResponseBody;
/** * Created by Zhaoqingzhi on 2017/2/16. */
public class OkhttpUtils {    private static final OkHttpClient okhttpclient=new OkHttpClient();
    /**     * 获取请求对象request     * @param url     * @return     */    private static Request getRequestFromUrl(String url){        Request request=new Request.Builder().url(url).build();        return request;    }    /**
     * 获取响应对象     * @param url     * @return     * @throws IOException     */    private static Response getResponseFromUrl(String url) throws IOException {        Request request=getRequestFromUrl(url);        Response response=okhttpclient.newCall(request).execute();        return response;    }    /**
     * 获取responseBody对象     * @param url     * @return     * @throws IOException     */    private static ResponseBody getResponseBodyFromUrl(String url) throws IOException {        Response response=getResponseFromUrl(url);        if(response.isSuccessful()){            return   response.body();        }        return null;    }    /**
     * 通过网络请求获取字符串     * @param url     * @return     * @throws IOException     */    public static  String loadStringFromUrl(String url) throws IOException {        ResponseBody responseBody=getResponseBodyFromUrl(url);        if(responseBody!=null){            return responseBody.string();        }        return null;    }    /**     * 通过网络请求获取字符串     * @param url     * @return     * @throws IOException     */    public byte[] loadByteFromUrl(String url) throws IOException {        ResponseBody responseBody=getResponseBodyFromUrl(url);        if(responseBody!=null){            return responseBody.bytes();        }        return null;    }    /**     * 通过网络请求获取输入流     * @param url     * @return     * @throws IOException     */    public InputStream loadStemFromUrl(String url) throws IOException {        ResponseBody responseBody=getResponseBodyFromUrl(url);        if(responseBody!=null){            return responseBody.byteStream();        }        return null;    }}

在activty中调用是这样：

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    Thread thread=new Thread(runnable);    thread.start();}private Runnable runnable=new Runnable() {    @Override    public void run() {        try {            String str= OkhttpUtils.loadStringFromUrl("url");            Log.e("tag=",str+"----");        } catch (IOException e) {            e.printStackTrace();        }    }};

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